The thing you will want to watch for is parasitic inductance and resistance in the leads. That looks like a switchmode regulator which can have very high peak currents at high frequencies. Notice the parts are clustered tightly together connected by big fat traces. You can *probably* get away with moving things around a bit, but make sure you use heavy enough wires and keep them as short and direct as possible.

Are you trying to make room for a longer hard drive? You might see if you can find tantalum or ceramic capacitors that are low profile enough to fit under it without moving them.